Alturas, CA Weather & Growing Conditions
Tonight
39°F
Mostly Clear
Mostly clear. Low around 39, with temperatures rising to around 42 overnight. North wind 1 to 7 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 39°F | Mostly Clear | 1 to 7 mph N | 1% |
| Saturday | 79°F | Sunny | 0 to 5 mph NE | 0% |
| Saturday Night | 41°F | Mostly Clear | 1 to 5 mph ENE | 0% |
| Sunday | 82°F | Mostly Sunny | 1 mph E | 0% |
| Sunday Night | 45°F | Partly Cloudy | 0 to 3 mph ENE | 0% |
| Monday | 84°F | Mostly Sunny | 0 to 7 mph N | 2% |
| Monday Night | 45°F | Partly Cloudy | 0 to 7 mph NNE | 2% |
| Tuesday | 83°F | Sunny | 0 to 6 mph NW | 0% |
| Tuesday Night | 43°F | Mostly Clear | 0 to 6 mph NW | 0% |
| Wednesday | 85°F | Sunny | 0 to 6 mph WSW | 0% |
| Wednesday Night | 44°F | Mostly Clear | 0 to 6 mph SW | 0% |
| Thursday | 86°F | Sunny | 0 to 13 mph SSW | 0% |
| Thursday Night | 45°F | Mostly Clear | 3 to 13 mph SSW | 1% |
| Friday | 81°F | Sunny | 3 to 17 mph SW | 1% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Alturas, CA
Last spring frost
Jun 3
First fall frost
Sep 13
Growing season
97 days
Hardiness zone
6b
Explore more for Alturas, CA: full frost dates · planting calendar · California frost dates
Climate data from the nearest NOAA station, Alturas, Ca (2.9 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.